Technical data

9.2 Protection Class

The motors are divided into corresponding protection classes (IP) regarding

their applicability for different ambient conditions. These protection classes (IP)

are described in DIN EN 60529. The protection of the device is signed with a

double-digit number. The first characteristic numeral defines the degree of pro-

tection against contact and penetration of foreign particles. The second code

numeral defines the degree of protection against water.

1st code num-

ber

Degree of protection

Protection against penetration of dust (dust-proof); complete contact

protection

Protection against penetration of solid foreign bodies, more than 1

mm in diameter

Protection against penetration of solid foreign bodies, more than 12.5

mm in diameter

2nd code num-

ber

Degree of protection

7 Protection against harmful effects if temporarily immersed in water

Protection against a water jet from a nozzle directed against the

housing from all directions (jet water)

Protection against water splashing against the housing from all di-

rections (splashwater)

Fig.9-7: IP protection classes

① Motor housing and output shaft with shaft sealing ring

② Plug-in in connected condition

③ Fan motor and connector

④ Fan screen

Fig.9-8: IP protection class range for MSK motors

The IndraDyn S motor construction corresponds with the following protection

class according to DIN VDE 0470, Part 1, ed. 11/1992 (EN 60 529):

Project Planning Manual | Rexroth IndraDyn S Electric Drives

and Controls

| Bosch Rexroth AG 159/194

Operating Conditions and Application Notes